Susanne Lieu is the managing director for Ruben Companies, a real estate development and property management company located in New York. Since joining the company in 2001, she has been responsible for a number of duties including joint venture transactions, financing, and the management of a 5 million square foot real estate portfolio that ranges from Washington D.C. to Boston to New York.

In addition to her position at Ruben Companies and her near twenty-year career in real estate, Susanne Lieu is a member of WX. WX is an invitation-only association for women executives working in commercial real estate in New York. The mission of WX is to promote the growth of women in commercial real estate by both enhancing the public perception of their role within the industry and advocating for the highest standards of professionalism.

WX offers both a scholarship program and a mentoring program for women who are pursuing a career in commercial real estate. The scholarship is meant to support students studying real estate at the undergraduate or graduate levels while the mentor program helps foster relationships between women entering the field and women who have established themselves as experienced real estate professionals.